Display screen or portion thereof with icon



The FIGURE is a front view of a display screen or portion thereof with icon, showing our new design.

The outer perimeter illustrated by a pair of broken lines in the FIGURE represents a display screen or portion thereof and forms no part of the claimed design. The dot-dash broken lines in the FIGURE represent a boundary of the claimed design and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 